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<title>Problem 2320. -- 最多重复子串 -- 衡阳八中OJ离线版-2012-02-29</title><center><h2>2320: 最多重复子串</h2><span class=green>Time Limit: </span>40 Sec&nbsp;&nbsp;<span class=green>Memory Limit: </span>128 MB<br><span class=green>Submit: </span>76&nbsp;&nbsp;<span class=green>Solved: </span>29<br>[<a href='submitpage.php?id=2320'>Submit</a>][<a href='problemstatus.php?id=2320'>Status</a>][<a href='bbs.php?id=2320'>Discuss</a>]</center><h2>Description</h2><div class=content><p class="p0" style="margin-top: 0pt; margin-bottom: 0pt; text-indent: 21.25pt; line-height: 12pt"><span style="font-size: 12pt; color: rgb(0,0,0); font-family: '宋体'; mso-spacerun: 'yes'">一个字符串P的重复数定义为最大的整数R，使得P可以分为R段连续且相同的子串。比方说，&ldquo;ababab</span><span style="font-size: 12pt; color: rgb(0,0,0); font-family: '宋体'; mso-spacerun: 'yes'">&rdquo;</span><span style="font-size: 12pt; color: rgb(0,0,0); font-family: '宋体'; mso-spacerun: 'yes'">的重复数为3，&ldquo;ababa</span><span style="font-size: 12pt; color: rgb(0,0,0); font-family: '宋体'; mso-spacerun: 'yes'">&rdquo;</span><span style="font-size: 12pt; color: rgb(0,0,0); font-family: '宋体'; mso-spacerun: 'yes'">的重复数为1。</span><span style="font-size: 12pt; color: rgb(0,0,0); font-family: '宋体'; mso-spacerun: 'yes'"><o:p></o:p></span></p>
<p class="p0" style="margin-top: 0pt; margin-bottom: 0pt; layout-grid-mode: char; text-align: left"><span style="font-weight: bold; font-size: 12pt; color: rgb(0,0,0); font-family: '宋体'; mso-spacerun: 'yes'">Your&nbsp;Task</span><span style="font-weight: bold; font-size: 12pt; color: rgb(0,0,0); font-family: '宋体'; mso-spacerun: 'yes'"><o:p></o:p></span></p>
<p class="p0" style="margin-top: 0pt; margin-bottom: 0pt; text-indent: 21.25pt; line-height: 12pt"><span style="font-size: 12pt; color: rgb(0,0,0); font-family: '宋体'; mso-spacerun: 'yes'">对于给定的串S，找出S的一个子串K使得K的重复数最大。</span><span style="font-weight: bold; font-size: 12pt; font-family: 'Times New Roman'; mso-spacerun: 'yes'"><o:p></o:p></span></p>
<p class="p0" style="margin-top: 0pt; margin-bottom: 0pt; layout-grid-mode: char; text-indent: 21pt; text-align: left"><span style="font-weight: normal; font-size: 12pt; color: rgb(255,255,255); font-family: 'Times New Roman'; mso-spacerun: 'yes'"><o:p></o:p></span></p>
<!--EndFragment--></div><h2>Input</h2><div class=content><p class="p0" style="margin-top: 0pt; margin-bottom: 0pt; layout-grid-mode: char; text-indent: 21pt; text-align: left"><span style="font-size: 12pt; color: rgb(0,0,0); font-family: '宋体'; mso-spacerun: 'yes'">第一行T表示数据组数</span><span style="font-size: 12pt; color: rgb(0,0,0); font-family: '宋体'; mso-spacerun: 'yes'"><o:p></o:p></span></p>
<p class="p0" style="margin-top: 0pt; margin-bottom: 0pt; layout-grid-mode: char; text-align: left"><span style="font-size: 12pt; color: rgb(0,0,0); font-family: '宋体'; mso-spacerun: 'yes'">对于每组数据，一行中一个仅包含小写字母的字符串S</span><span style="font-size: 12pt; color: rgb(0,0,0); font-family: '宋体'; mso-spacerun: 'yes'"><o:p></o:p></span></p>
<p class="p0" style="margin-top: 0pt; margin-bottom: 0pt; layout-grid-mode: char; text-align: left"><span style="font-weight: normal; font-size: 12pt; color: rgb(255,255,255); font-family: 'Times New Roman'; mso-spacerun: 'yes'"><o:p></o:p></span></p></div><h2>Output</h2><div class=content><p class="p0" style="margin-top: 0pt; margin-bottom: 0pt; layout-grid-mode: char; text-align: left"><span style="font-size: 12pt; font-family: '宋体'; mso-spacerun: 'yes'">对于每组数据，在一行中输出<font face="Times New Roman">K</font><font face="宋体">，如果有多个解，输出字典序最小的那一个</font></span><span style="font-size: 12pt; font-family: 'Times New Roman'; mso-spacerun: 'yes'"><o:p></o:p></span></p>
<p class="p0" style="margin-top: 0pt; margin-bottom: 0pt; text-indent: 21pt"><span style="font-weight: normal; font-size: 12pt; color: rgb(255,255,255); font-family: 'Times New Roman'; mso-spacerun: 'yes'"><o:p></o:p></span></p></div><h2>Sample Input</h2>
			<div class=content><span class=sampledata>2<br />
ccabababc<br />
daabbccaa<br />
<br />
</span></div><h2>Sample Output</h2>
			<div class=content><span class=sampledata><br />
ababab<br />
aa<br />
<br />
</span></div><h2>HINT</h2>
			<div class=content><p><p>100%：T&le;10，S的长度不超过100000<br /><br />
</p></p></div><h2>Source</h2>
			<div class=content><p><a href='problemset.html?search='></a></p></div><center>[<a href='submitpage.php?id=2320'>Submit</a>][<a href='problemstatus.php?id=2320'>Status</a>][<a href='bbs.php?id=2320'>Discuss</a>]</center>﻿<br>

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